Mimosa caesalpiniifolia Benth. adapts to rhizobia populations with differential taxonomy and symbiotic effectiveness outside of its location of origin
| Autor: | Lindete Míria Vieira Martins, Ederson da Conceição Jesus, Sergio Miana de Faria, Maura Santos Reis de Andrade da Silva, Jairo de Oliveira Tenorio, Isabelly Santos Rosado de Oliveira, Thiago Gonçalves Ribeiro |
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| Rok vydání: | 2019 |
| Předmět: |
DNA
Bacterial 0301 basic medicine Mimosa food.ingredient 030106 microbiology Forests Applied Microbiology and Biotechnology Microbiology Rhizobia 03 medical and health sciences food Symbiosis RNA Ribosomal 16S Botany Axenic Phylogeny Ecology biology Burkholderiaceae food and beverages Fabaceae Sequence Analysis DNA Paraburkholderia biology.organism_classification Adaptation Physiological 030104 developmental biology Nitrogen fixation Rhizobium Taxonomy (biology) Root Nodules Plant Brazil |
| Zdroj: | FEMS Microbiology Ecology. |
| ISSN: | 1574-6941 0168-6496 |
| DOI: | 10.1093/femsec/fiz109 |
| Popis: | Mimosa caesalpiniifolia Benth. is a legume native to the semi-arid region of Brazil, in the Northeast. Its successful adaptation to other locations, such as the Atlantic Forest in the Southeast region, may be related to its ability to establish symbiosis with nitrogen-fixing bacteria, especially β-rhizobia of the genus Paraburkholderia. The objective of this work was to determine whether M. caesalpiniifolia adapted to bacterial symbionts in locals where it was introduced. Bacteria were recovered from nodules of M. caesapiniifolia and characterized at the genetic level by BOX-PCR, and sequencing of the 16S rRNA, recA, nifH, and nodC genes. Their symbiotic effectiveness was assessed under axenic conditions. M. caesalpiniifolia nodulated mainly with P. sabiae and a few strains of Rhizobium in the Southeast. On the other hand, the symbionts found in the Northeast were, predominantly, P. diazotrophica. Regardless of its origin, P. diazotrophica promoted a superior accumulation of plant biomass than other bacterial species. The results presented here demonstrate the ability of M. caesalpiniifolia to adapt to bacterial populations outside its location of origin, and indicate that, in this case, the symbiotic effectiveness was associated to the taxonomical classification of the strains. |
| Databáze: | OpenAIRE |
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